Cap for cans made of metal or other material



Feb. 27, 11923.

S. N. TEVANDER ER L CAP

FOR CANS MADE OF METAL OR OTHER MAT Fil'ed Aug. 20, 1920 Patented Feb. 27', ll9213 swim NILS revenues, or MAYwooD, ILLINOIS.

CAP FOR CANS MADE OF METAL OR OTHER MATERIAL.

Application filed August 20, 1920. Serial No. 404,883.

To all whom it may concern."

Be it known that I, SWAN NILs TEVANDER, a citizen of theUnited States, a resident of Maywood, in the county of Cook and State of Illinois, have invented a new and useful Cap for Cans made of Metal or Other Material, of which the following is a specification.

My invention relates to covers for cans of various types wherein the cap is sealed to the can top head by means of crimping the material of the cap into a frictional engagement with the body of the can. The object of the invention is to increase the efliciency of the fastening of the cap to the can and provide a better form for the cap and the can opening.

The invention is set forth in the claims.

Reference will be had to the accompanying drawing in which Figure 1 is a front elevation of a can with my cap secured thereto.

Figure 2 is an enlarged detail sectional view showing the fastening of the cap to the can top or head.

Figure 3 is a plan View.

Figure 4 is an enlarged sectional elevation of the head of the can prepared to receive my cap.

Figure 5 is a detail through the body of the cap when shaped in form to be fixed to the can.

Figure 6 is an enlarged detail showing a slightly different arrangement of the linlng material for the cap. 4

Figure 7 shows a detail of a modified form of the lining or sealing material for the cap.

In the drawing 1 indicates the body of the can made in any ordinary way of making can bodies. The head or open end of this can is curled over into a roll as indicated by 2. This curling or beading is performed in the well known manner of tools used for that purpose. 3 indicates my can top which is prepared in form as shown 1n Figure 5. This top is prepared with raised rim 4 having a peculiar shaped skirtor flange 5 which extends downward in the form of the outwardly concave corrugation 6 and the reverse corrugation 7 here shown in full lines as having only two corrugations. However. when desired I may continue this-flange or skirt giving it greater depth as indicated by 8 in dotted lines at the right side of Figure 5.

I prefer to line the inside of my cap with some desirable gasket material or packing material such as paper, wood pulp composition, etc., and this may cover the entire area of the can cap as indicated by 9 in Figure 6,

ginal or it may extend only over the mararea as indicated at 10 in Figure 2.

In some instances this material may be omitted altogether, depending on the character can.

of the contents to be carried by the Neither paper nor other sheet material need be used for lining the cap, any suitable slightly compressible coating may be applied to the interior of the cap flange asindicated Fig. 7.

The cans with which this cap is to be used may be made of any suitable material such as tin, paper, composition, etc.- When the can body is made ready to receive thecap its sides have the appearance indicated in Figure 4, or if desired they may be prepared with a slight indentation as is shown at 12,

Fig. 6.

After the can has been supplied with its contents the cap is placed over it as indicated in dotted lines in Figure 4 and is large enough to pass over freely without any forcing.

Then with a special tool theskirt or flange of the cap on the outside of the can head is crimped by vertical pressure applied on the top of the edge or rim 4: and the bottom of the skirt or flange 7, causing the cor-. rugations to bend up into the form shown by the ribs 13 in Figures 2 and 6. In this crimping action the tool simply draws up the skirt or flange of the cap and causes the metal to flow out in horizontal lines in both directions and in the case of a tin can or a paper can theforce of this movement is sufficient to cause a slight indentation'in the upper portion of a primarily cylindrical body.

cover down for any normal service such as.

I for canned goods of all sorts, including vegetables, meats, fish, etc.

A cap of this form is readily removed and replaced, so that the open can may be set upon a table for use and the cover can be readily replaced, if desired, forming again a satisfactory closure when the can is to be used further. a

This sort of av cap may be used for a wide variety of purposes besides the normal fruit and meat canning purposes, for instance it may be used for varnish and paint cans, syrup can'and the cap be used} as the service cap in place of an ordinary cork as heretofore provided for a wide range of 'uses.

The expense (if-preparing this type of cap and fastening the same to the can is not greater than that nowv generally incurred for-what is-termed sanitary cans and at the same time it provides for a serving container which is a great desideratum'.

. The body of the cap is normally below the end margin of the tan which it closes and has an upwardly extending marginal cylindrical wall 14 Which fits against and stiltens the marginal portion of the can wall, whereby both cap and can strongly resist distortion 'or other injury, permitting the use-,of unusually light material.

The can itself as made by the manufacturers is shipped to the packers with the cans and covers separate and the packer after filling the can with its contents places the covers and does the sealing.

The cans heretofore used of the open top type have thin narrow flanges at the open ends of the can and these cansbeing shipped and handled sometimes rather carelessly this thin flange at thetop is often damaged and the packer'does not notice the damage until after the can has been filled and the contents destroyed i'by leaks which are discovered too late to save the contents of the can or the can itself. With my can the beaded end of the open end of the can is less easily damaged by handling and even though indentations may be caused by accident these will either be so slight as to not affect the proper sealing of the can or will be so marked as to be noticed by the packer before the can is.

supplied with its contents. The method of applying my cap and sealing the same to the can'is such that considerable distortion.

' may have taken place in the shape of'the open end of the can and this distortion will be cor rected by the tools that actually seal the can and the cap together. Thus a. large saving will be had by the packer who uses my cap asdcompared with the use of the old style en Further the cap when it is sealed upon the can, owing to the inset location of the head 3 of the cap and the stiffening flanges on the cap and the reinforcing of the can top end in the cap makes a stifl'er head to tacle having a plain cylindrical neck which consists in placing upon the receptacle a cap having a pliable pendant marginal flange provided withan annular corrugation closely fitting the neck and compressing. the corrugation vertically forcing and permanently holding it against the neck, regardless. of recoil.

Signed at Chicago, in the county of Cook and State. of Illinois, this 2nd day of August, 1920.

SWAN NILS TEVANDER'.

\Vitnesses B. J. Bram-man,

A. J. CARTER. 

